diff --git a/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithTypeDeclarationsTest.php b/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithTypeDeclarationsTest.php
index 006ffe55..c6d021c1 100644
--- a/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithTypeDeclarationsTest.php
+++ b/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithTypeDeclarationsTest.php
@@ -181,7 +181,9 @@ public function objectStorageWithArraySyntaxWithoutKeyValueTypeProperty(): void
         self::assertSame('object', $propertyTypes[0]->getBuiltinType());
         self::assertSame(ObjectStorage::class, $propertyTypes[0]->getClassName());
 
-        self::assertCount(0, $propertyTypes[0]->getCollectionKeyTypes());
+        self::assertCount(2, $propertyTypes[0]->getCollectionKeyTypes());
+        self::assertSame('string', $propertyTypes[0]->getCollectionKeyTypes()[0]->getBuiltinType());
+        self::assertSame('int', $propertyTypes[0]->getCollectionKeyTypes()[1]->getBuiltinType());
 
         self::assertCount(1, $propertyTypes[0]->getCollectionValueTypes());
         self::assertSame('object', $propertyTypes[0]->getCollectionValueTypes()[0]->getBuiltinType());
diff --git a/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithoutTypeDeclarationsTest.php b/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithoutTypeDeclarationsTest.php
index e9363f9b..4f92e9a1 100644
--- a/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithoutTypeDeclarationsTest.php
+++ b/Tests/Unit/Reflection/ClassSchema/Property/PropertyWithoutTypeDeclarationsTest.php
@@ -193,8 +193,9 @@ public function objectStorageWithArraySyntaxWithoutKeyValueTypeProperty(): void
         self::assertTrue($propertyTypes[0]->isCollection());
         self::assertSame('object', $propertyTypes[0]->getBuiltinType());
         self::assertSame(ObjectStorage::class, $propertyTypes[0]->getClassName());
-
-        self::assertSame([], $propertyTypes[0]->getCollectionKeyTypes());
+        self::assertCount(2, $propertyTypes[0]->getCollectionKeyTypes());
+        self::assertSame('string', $propertyTypes[0]->getCollectionKeyTypes()[0]->getBuiltinType());
+        self::assertSame('int', $propertyTypes[0]->getCollectionKeyTypes()[1]->getBuiltinType());
 
         self::assertCount(1, $propertyTypes[0]->getCollectionValueTypes());
         self::assertSame('object', $propertyTypes[0]->getCollectionValueTypes()[0]->getBuiltinType());
diff --git a/Tests/Unit/Reflection/ClassSchema/PropertyTest.php b/Tests/Unit/Reflection/ClassSchema/PropertyTest.php
index a8e46e92..af0b4424 100644
--- a/Tests/Unit/Reflection/ClassSchema/PropertyTest.php
+++ b/Tests/Unit/Reflection/ClassSchema/PropertyTest.php
@@ -144,7 +144,9 @@ public function classSchemaDetectsTypeAndElementType(): void
 
         self::assertSame(ObjectStorage::class, $propertyType->getClassName());
 
-        self::assertCount(0, $propertyType->getCollectionKeyTypes());
+        self::assertCount(2, $propertyType->getCollectionKeyTypes());
+        self::assertSame('string', $propertyType->getCollectionKeyTypes()[0]->getBuiltinType());
+        self::assertSame('int', $propertyType->getCollectionKeyTypes()[1]->getBuiltinType());
         self::assertCount(1, $propertyType->getCollectionValueTypes());
 
         self::assertSame(DummyClassWithAllTypesOfProperties::class, $propertyType->getCollectionValueTypes()[0]->getClassName());
diff --git a/composer.json b/composer.json
index e0f47cef..1bb5bf76 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
 		"phpdocumentor/type-resolver": "^1.7.1",
 		"symfony/dependency-injection": "^6.2",
 		"symfony/property-access": "^6.2",
-		"symfony/property-info": "^6.2",
+		"symfony/property-info": "^6.2.11",
 		"typo3/cms-core": "13.0.*@dev"
 	},
 	"suggest": {